RE: [linux-lvm] LVM

From: "IT3 Stuart B. Tener, USNR-R" <stuart bh90210 net>

To: <linux-lvm sistina com>

Subject: RE: [linux-lvm] LVM

Date: Wed, 12 Sep 2001 16:31:16 -0700

Dear Sir:
This maybe true, however I plan to handle my disaster recovery scenario differently; I would much prefer to make my own rescue disc (which I did before ReiserFS was a standard part of the distributed kernel with Mandrake as part of its bootable rescue portion) which is inclusive of LVM.
What I was trying to figure out was if it was NECESSARY to have a separate /boot partition or not. I am curious if there is a way to avoid a separate /boot partition by using either modules compiled into the kernel or otherwise. I presume from what you said it is not possible, and I am forced to have a separate /boot. I prefer to keep everything under the control of LVM. I also do two backups (via DD) of my entire hard disk, so I am not as concerned about not being able to boot. I have two separate drives I backup onto for just that purpose.
Very Respectfully,
Stuart Blake Tener, IT3, USNR-R, N3GWG
Beverly Hills, California
VTU 1904G (Volunteer Training Unit)
stuart bh90210 net
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Wednesday, September 12, 2001 4:28 PM
-----Original Message-----
From: linux-lvm-admin sistina com [mailto:linux-lvm-admin sistina com]On Behalf Of Andreas Dilger
Sent: Wednesday, September 12, 2001 4:26 PM
To: linux-lvm sistina com
Subject: Re: [linux-lvm] LVM
On Sep 12, 2001 15:47 -0700, IT3 Stuart B. Tener, USNR-R wrote:
> Prior to using LVM, it did not matter that my single Linux partition
> (the root "/") was located beyond the 1024 cylinder. Why does LVM
> move me backwards in making it requisite to again have this limitation
> present? Perhaps I ought to wait until LVM becomes more mature then.
I doubt that this is necessary. LILO doesn't understand anything but
BIOS-accessible disk blocks, whether it is LVM + ext2/ext3/reiserfs/other.
If you can use your partition beyond cylinder 1024 before, you can continue
to do so later.
That said, there are reasons for NOT putting all of your eggs in one
basket (e.g. LVM). If there is any problem with LVM, you will not be
able to boot your system. On my systems I have /boot in a regular
partition (about 70MB) which has my kernels/initrd in it, along with
enough tools from /bin and /sbin, and libs from /lib in order to have
a rescue boot partition in case of trouble. Once I have tested the
booting from that partition, I don't touch it anymore (it has a
separate "rescue" kernel, modules, etc).
Cheers, Andreas
--
Andreas Dilger \ "If a man ate a pound of pasta and a pound of antipasto,
\ would they cancel out, leaving him still hungry?"
http://www-mddsp.enel.ucalgary.ca/People/adilger/ -- Dogbert
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